Abstract
TRAUTMAN has postulated1 that the usual space–time singularity occurring in classical cosmological models and in the gravitational collapse of massive objects could be averted if intrinsic spin effects are incorporated into general relativity by adding torsion terms to the usual Einstein field equations, that is through the Einstein–Cartan theory. Invoking a primordial magnetic field for aligning all the individual nuclear spins he shows that his universe consisting of 1080 aligned neutrons collapses to a minimum radius of the order of 1 cm with a corresponding matter density of 1055 g cm−3.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Trautman, A., Nature phys. Sci., 242, 7 (1973).
Isham, C. J., Salam, A., and Strathdee, J., Nature phys. Sci., 244, 82 (1973).
Sivaram, C., and Sinha, K. P., Lett. Nuovo Cim., 8, 324 (1973).
Hawking, S. W., and Penrose, R., Proc. R. Soc. Lond., A 314, 529 (1970).
Wheeler, J. A., in Relativity Groups and Topology, (edit. by Dewitt, C. and B.), 328 (Gordon and Breach, New York, 1964).
Harrison, E. R., Phys. Today, 21, 31 (1968).
Novikov, I. P., and Zeldovich, Ya. B., A. Rev. Astr. Astrophys., 5, 627 (1967).
Sivaram, C., and Sinha, K. P., Lett. Nuovo Cim. (in the press).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
SIVARAM, C., SINHA, K. & LORD, E. f Gravity and gravitational singularities. Nature 249, 640–641 (1974). https://doi.org/10.1038/249640a0
Received:
Issue Date:
DOI: https://doi.org/10.1038/249640a0
This article is cited by
-
The necessity of high precision measurements in fundamental constants
Astrophysics (1994)
-
Nonlinear curvature Lagrangians and extended inflation in the early universe
Astrophysics and Space Science (1992)
-
Torsion and the cosmological constant problem
Astrophysics and Space Science (1990)
-
Nonsingular cosmological models in Brans-Dicke theory
General Relativity and Gravitation (1982)
-
The superfluid vacuum state, time-varying cosmological constant, and nonsingular cosmological models
Foundations of Physics (1976)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
